ui/Runtime/SliderText.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;
using Sirenix.OdinInspector;
using KairoEngine.Core;


namespace KairoEngine.UI
{
    public class SliderText : MonoBehaviour
    {
        public enum TextType
        {
            Percentage,
            CurrentMax
        }
        public TextType textType = TextType.Percentage;
        public TextMeshProUGUI text;
        [ShowIf("@textType == TextType.Percentage")] public string suffix = "%";
        [ShowIf("@textType == TextType.Percentage")] public float multiplier = 100;
        [ShowIf("@textType == TextType.CurrentMax")] public string separator = "/";

        public bool hideEmptyFill = false; 
        
        public Slider slider;
        
        public void OnEnable()
        {
            slider.onValueChanged.AddListener(delegate {UpdateText(); });
        }

        void OnDisable()
        {
            slider.onValueChanged.RemoveListener(delegate {UpdateText(); });
        }

        void Start()
        {
            UpdateText();
        }
        
        [OnInspectorInit]
        public void UpdateText()
        {
            if(textType == TextType.Percentage)
            {
                float value = slider.value * multiplier;
                value = value < 0.6 ? 0 : Mathf.CeilToInt(value);
                text.text = $"{(int)value}{suffix}";
            }
            else if(textType == TextType.CurrentMax)
            {
                float value = slider.value;
                float max = slider.maxValue;
                text.text = $"{(int)value}{separator}{(int)max}";
            }
            if(hideEmptyFill)
            {
                if((int)slider.value == 0 && slider.fillRect.gameObject.activeSelf) 
                    Timer.ExecuteRealTime(20, () => slider.fillRect.gameObject.SetActive(false));
                else if(!slider.fillRect.gameObject.activeSelf) 
                    Timer.ExecuteRealTime(20, () => slider.fillRect.gameObject.SetActive(true));
            }
        }
    }
}